"I don't think any West Virginian remembers this day without heartache and profound sadness. Like all of us, my thoughts and prayers today remain with the families and the community that suffered this awful tragedy," Sen. Jay Rockefeller, D-W.Va., said in a statement. "It should never take a tragedy-or the anniversary of one-to remind us that mining coal is a dangerous job, and the men and women who do it for a living deserve every protection we can offer.

"We made some strides immediately after Sago, but it's just not enough. We need to do more. We need these tragedies to stop."